简介：Aseriesofnumericalsimulationsisconductedtounderstandtheformation,evolution,anddissipationofanadvectionfogeventoverShanghaiPudongInternationalAirport(ZSPD)withtheWeatherResearchandForecasting(WRF)model.UsingthecurrentoperationalsettingsattheMeteorologicalCenterofEastChinaAirTrafficManagementBureau,theWRFmodelsuccessfullypredictsthefogeventatZSPD.Additionalnumericalexperimentsareperformedtoexaminethephysicalprocessesassociatedwiththefogevent.Theresultsindicatethatpredictionofthisparticularfogeventissensitivetomicrophysicalschemesforthetimeoffogdissipationbutnotforthetimeoffogonset.Thesimulatedtimingofthearrivalanddissipationofthefog,aswellastheclouddistribution,issubstantiallysensitivetotheplanetaryboundarylayerandradiation(bothlongwaveandshortwave)processes.Moreover,varyingforecastleadtimesalsoproducesdifferentsimulationresultsforthefogeventregardingitsonsetandduration,suggestingatrade-offbetweenmoreaccurateinitialconditionsandaproperforecastleadtimethatallowsmodelphysicalprocessestospinupadequatelyduringthefogsimulation.TheoveralloutcomesfromthisstudyimplythatthecomplexityofphysicalprocessesandtheirinteractionswithintheWRFmodelduringfogevolutionanddissipationisakeyareaoffutureresearch.